small R Docker cleanup (#3582)

b07afa46 · Nikita Titov · GitHub · 637ff800 · b07afa46
Unverified Commit b07afa46 authored Nov 21, 2020 by Nikita Titov Committed by GitHub Nov 21, 2020
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docker/dockerfile-r docker/dockerfile-r +3 -1

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--- a/docker/dockerfile-r
+++ b/docker/dockerfile-r
@@ -4,7 +4,9 @@ FROM rocker/verse:${R_VERSION}
 WORKDIR /lgbm

 RUN apt-get update && \
-    apt-get install -y build-essential cmake && \
+    apt-get install -y --no-install-recommends \
+        build-essential \
+        cmake && \
    git clone --recursive --branch stable --depth 1 https://github.com/Microsoft/LightGBM && \
    cd LightGBM && \
    Rscript build_r.R